Fostex Dallas II

maartentje · 10th April 2010, 03:08 AM

Hi guys,

I am starting with the building of the Dallas II. Any tips about the damping material in the cabinet? Cant find anything about it.

Thnx!

planet10 · 10th April 2010, 04:53 AM

Should be no damping required in the horn. You'll want to play with it in the air cavity.

dave

maartentje · 10th April 2010, 02:39 PM

Hi,

Thnx the air cavity is the area behind the driver right? What kind of material you sugest?

thnx

maartentje · 24th April 2010, 03:17 PM

Is this the way it should be ? Any tips?

DaveCan · 12:59 PM

Looks like a good start to me for damping

And good job on the build too!!, however it's too bad it had to be made from mdf

If you like what you hear when your ready to fire them up (and I'm sure you will), it would be a great improvement to make another set out of Baltic Birch ply or equivalent, instead of mdf ... Dave

mightym · 25th April 2010, 01:18 PM

In a post on the old Fullrange forum, the designer stated IIRC.

Put some felt in the bends, and add 1-4 Ohm series resistance to taste.

This is paraphrased, of course, but he did recomend damping the outside of the 2 bends, and adding a small amount of resistance to taste. I believe he also said something about the chamber behind the driver too.

If I can ever get off my A$$, I've got a pair of Dallas II's to finish too.

John

The forum is searchable, and that's how I found the above. I do not remember the search terms I used, sorry. I found the above when researching my build.

Good looking build BTW.

10th April 2010, 03:08 AM	#1
maartentje diyAudio Member Join Date: Jun 2002 Location: USA, FL	Fostex Dallas II Hi guys, I am starting with the building of the Dallas II. Any tips about the damping material in the cabinet? Cant find anything about it. Thnx!

10th April 2010, 04:53 AM	#2
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	Should be no damping required in the horn. You'll want to play with it in the air cavity. dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

25th April 2010, 12:55 PM	#5
DaveCan diyAudio Member Join Date: Nov 2005 Location: Moncton NB	Looks like a good start to me for damping And good job on the build too!!, however it's too bad it had to be made from mdf If you like what you hear when your ready to fire them up (and I'm sure you will), it would be a great improvement to make another set out of Baltic Birch ply or equivalent, instead of mdf ... Dave Last edited by DaveCan; 25th April 2010 at 12:59 PM.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Dallas II plans	Novacaine1968	Full Range	6	13th February 2010 12:42 PM
Dallas II + 208E = ?	Mr.Mekulic	Full Range	13	15th December 2008 05:20 PM
Dallas II with AER MK1?	tocaco3	Full Range	9	16th April 2008 11:19 AM
Where is the Dallas II	amisdad	Full Range	16	5th November 2005 04:57 PM


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

10th April 2010, 02:39 PM	#3
maartentje diyAudio Member Join Date: Jun 2002 Location: USA, FL	Hi, Thnx the air cavity is the area behind the driver right? What kind of material you sugest? thnx

25th April 2010, 01:18 PM	#6
mightym diyAudio Member Join Date: Feb 2008 Location: Checotah, Okrahoma former home of the Okra Fest	In a post on the old Fullrange forum, the designer stated IIRC. Put some felt in the bends, and add 1-4 Ohm series resistance to taste. This is paraphrased, of course, but he did recomend damping the outside of the 2 bends, and adding a small amount of resistance to taste. I believe he also said something about the chamber behind the driver too. If I can ever get off my A$$, I've got a pair of Dallas II's to finish too. John The forum is searchable, and that's how I found the above. I do not remember the search terms I used, sorry. I found the above when researching my build. Good looking build BTW.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read